Apple Watch Ultra Heart Rate During Workout

I’ve been having problems with my Apple Watch ultra. basically as seen in the photos I’ve attached, every workout I do starts with the Apple Watch reading my heart rate and then for the next 5-10 minutes it doesn’t read at all. I’ve looked everywhere and read different forums and tried every setting possibility out there but none of it seems to work because it looks like I’m the only one with this problem, I’ve tried loosing and tightening my strap but it doesn’t effect the process. I’ve came to conclusion that this is a bug in the workout app because the heart rate sensors work and as seen they read my heart rate through the other half of my workout.


if anyone else has this problem please let me know.

Apple Watch Ultra, watchOS 9

Posted on Dec 18, 2022 1:35 PM

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Question marked as Top-ranking reply

Posted on Jan 10, 2023 8:03 AM

Hi everybody,

I know all of you are frustrated about the Apple Watch not being able to read your heart rate sometimes while working out, well after about two weeks of talking everyday with Apple support we have a conclusion and it’s a scientific one.


Apple’s heart rate sensors are one of the most advanced sensors in the world for a wrist watch and they read your heart rate using the veins on your wrist.

when you begin a run you’re cold which means your veins aren’t popped out yet which makes it difficult for the every wrist workout watch to indicate what your heart rate is. When being in a lower temperature area such as running outdoors it’s likely that in the couple first minutes of the workout your heart rate won’t be read because your body is still cold therefor your veins didn’t pop yet (this happens mostly in the winter and depends on where you live) I’ve talked with friends who own Garmin’s and Suunto’s and they’re experiencing the same problem too because of cold weather.


Please be advised that every person is different then the other and some people take longer time to warm up either because they’re more in shape and running a couple minutes won’t warm them up or that’s just how your body is.


What I can advise you before you contact Apple about a problem like this is to make a run indoors where it’s hotter then your outside temperature and run on a treadmill and you’ll be able to see that the Watch reads your heart rate easily, just make sure it’s strapped on as Apple advised while working out.

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274 replies

Jun 23, 2023 6:31 PM in response to OmriShpigel

Probably gonna kicked out of the Apple community or the post will be censored, but I’ll try it anyways. I sold my Ultra couple of weeks back and got a Garmin Epix 2 Pro instead. Never looking back. The ultra is a „lifestyle toy“ and not getting any better with watchOS10. The Epix is a serious training gadget, which does basically everything orders of magnitudes better (sleep tracking, training, workout etc.) if you are into sports, there is no reason to keep this crappy device. I’m done with Apple Watches, although I have every other possible Apple device and still love those :-)

Aug 26, 2023 6:13 AM in response to OmriShpigel

I have an Apple Watch Ultra and I’ve tried it all. I’ve used my watch indoors, outdoors cold weather, hot weather, reset the watch, finally asked for a replacement. The replacement is worse! I all occurs when I really increase my heart rate rapidly during a workout. It fades out I stop my workout wait 15+ seconds and it comes back on but my heat rate has dropped. Apple, as usual, not admitting it’s a problem. I am not the only one with this problem. I hate to be a conspiracy theorist but is this some kind of ploy by Apple to send us a glitch in the update to get us to buy a new watch when they come out next month? Does anybody have any solutions I have not tried ?

Sep 4, 2023 6:42 AM in response to Tocavi

Good luck I went through everything apple support told me looked online still it stops recording during workouts. Finally they sent a new watch it did the same thing…. only worse 😐. It happens every time during my workout when I increase the intensity to get my heart rate up. I’ve tried tightening it loosening it moving it further up on my wrist , lower it on my wrist. I am currently looking at purchasing a non Apple Watch for fitness tracking . I mean I spent $799 for a premium watch that was supposedly geared. for fitness tracking ! Come on Apple you can do better than this. Evidently this is a widespread issue . What do we get from Apple ….. silence or suggestions that are non fixes bad PR Apple. They are evidently not too concerned with current customers problems with a real issue. They safe preparing for their big “event” rather than current customers who have a legitimate issue. Do they know people talk and tell their friends! I will not be buying apple products and begin my shift starting now. I will not buy another product and as the products I have now reach the end of their usefulness I will buy non apple only. Starting with a watch that correctly tracks my fitness any suggestions?

Oct 5, 2023 6:51 AM in response to OmriShpigel

Update :

I went for a run just now and had no issue beside getting grey (heart rate icon during the beginning of the workout - after 3 mins ish) for maybe less than 10 seconds.

Session was 55 minutes and heart rate recording didnt fail this time!

I will try again soon and will test again.

Watch on Right Wrist, digital Crown Left Side (I dont thik this is make any difference but I want to believe the latest OS update improved things - 10.0.1 (21R360).

E.

Oct 8, 2023 7:02 AM in response to Btlsfn70

Don’t anyone think that we should be wearing the watch just like any other brand as per normal for it to work? Paying so much for a ultra watch for fitness and health that don’t really work normally is ready disappointing, I’m definitely going back to Apple Store for them to give me a solution since it’s still within apple care warranty period.

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Apple Watch Ultra Heart Rate During Workout

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